Wacom tablet config script

tablet-conf.sh

#!/usr/bin/env bash
config() {
	orig[X]=15200
	orig[Y]=9500

	offset[X]=0
	offset[Y]=0

	# relative/absolute
	mode=absolute

	# relative args
	scale=${1:-5} # 1/5

	# absolute args
	abs[X]=${1:-2533}
	abs[Y]=${2:-1583}

	# display resolution
	disp[x]=2560
	disp[y]=1440
}

main() {
	id=$(xsetwacom --list devices | grep stylus | cut -d $'\t' -f 2 | cut -d ' ' -f2)
	
	declare -A orig
	declare -A abs
	declare -A offset
	declare -A disp
	config # load config
	
	case $mode in
	relative)
		[[ $scale ]] || fatal "Scale is empty"

		abs[X]=$[ ${orig[X]} / $scale ]
		abs[Y]=$[ ${orig[Y]} / $scale ]
		;& # fallthrough
	absolute)
		xsetwacom --set $id Area ${offset[X]} ${offset[Y]} ${abs[X]} ${abs[Y]} 
		broadcast "Area set to (${abs[X]},${abs[Y]}), offset (${offset[X]},${offset[Y]})"
		;;
	*)
		>&2 echo "Unknown mode"
		exit 2
	esac
	
	#xsetwacom --set $id MapToOutput 1920x$[ 1080 * ${orig[X]} / ${orig[Y]} ]+0+0
	xsetwacom --set $id MapToOutput ${disp[x]}x${disp[y]}+0+0
	xsetwacom --set $id RawSample 2
	xsetwacom --set $id Suppress 2
	broadcast "Smoothing disabled"

	exit
	
	[[ $1 ]] && {
		while read -r x; do
			y=$[ x * 9500 / 15200 ]
			xsetwacom --set $id Area 0 0 $x $y
			echo "Set to $x $y"
		done
	}
}

broadcast() {
	gdbus call -e \
		-d "org.freedesktop.Notifications" \
		-o /org/freedesktop/Notifications  \
		-m "org.freedesktop.Notifications.Notify" \
		"" 0 "" "tablet-conf" "$*" "[]" "{}" -1 &> /dev/null
	echo "$@"
}

fatal() {
	>&2 echo "$@"
	exit 2
}

main "$@"